Cosmology is the one field in which researchers can—literally—witness the past. The cosmic background radiation, ancient light streaming toward us since the Big Bang, provides a pristine window onto the birth and evolution of the universe.

2018 marks the tenth anniversary of the prestigious Kavli Prize, which recognizes scientists for major advances in three research areas: astrophysics, nanoscience, and neuroscience—the big, the small, and the complex. …

A century after Einstein’s mathematics suggested the possibility of black holes, the Event Horizon Telescope (EHT) is finally observing them. The project’s latest achievement is the first image of the …

Computer scientist Jasmine Lawrence’s Cool Job is solving problems: She connects families thousands of miles apart through new Facebook technology, runs a blood donation network, and started her own personal …

In this live discussion and Q & A, Brian Greene addresses a wide range of fascinating questions, taken directly from the live chat, and covering a variety of topics, from …

Forget what you think you know about dark matter. After a 30-year search for a single, as yet unidentified, species of dark matter particle that would make up some 25% of the mass of the universe, physicists are starting to consider novel explanations.